<?xml version="1.0" encoding="ISO-8859-1"?>
<slide fontsize="6em">
	<title>Different Approach</title>
	<subtitle>Selecting a Subtree</subtitle>

<break/>
	<example><![CDATA[id | parent_id | path_string| path_identification_string     | depth
---+-----------+------------+--------------------------------+------
87 |         2 | /87/       | countries                      |     2
88 |        87 | /87/88/    | countries/belgium              |     3]]></example>
	<example class="highlight"><![CDATA[89 |        87 | /87/89/    | countries/netherlands          |     3
91 |        89 | /87/89/91/ | countries/netherlands/business |     4
92 |        89 | /87/89/92/ | countries/netherlands/economy  |     4]]></example>
	<example><![CDATA[90 |        87 | /87/90/    | countries/germany              |     3]]></example>
<break lines="4"/>
	<blurb>Query:</blurb>
	<example class="large">SELECT * FROM ezcontentobject_tree
	WHERE path_string LIKE '/87/89/%'</example>
</slide>
  
